Certified Pre Owned with 6 Month Warranty All battery purchases are final sale. There are no returns on batteries. Philips Respironics has designed two battery options for the the SimplyGO mini; a Standard batteryand anExtended battery. The duration of the standard lithium ion battery is 4.5 hours on the setting of 2. This is ideal for oxygen therapy patients who need to use a lower setting of pulse dose oxygen for less time while they're out and about. Patients can enjoy using a lightweight, portable oxygen concentrator for exercise and short trips without having to worry about charging again for 4.5 hours.It takes up to 4 hours to charge the standard lithium ion battery from 0 to 100%. It can be charged with AC power via the AC power cord or in a motor vehicle on DC power with the DC power cord. It can also be charged with the SimplyGo Mini external battery charger, so that one battery can be charging while the other is being used in the unit.The standard battery is very lightweight at only 1.1 lbs. It is 7.9 inches long by 3.6 inches wide by 1 inch thick. It's easy to carry multiple standard batteries in the accessory bag, or in the SimplyGo Mini backpack, which makes it easy to replace a depleted battery with a charged one while on the go. Standard battery: 1.1 lbs. It is 7.9 inches long by 3.6 inches wide by 1 inch thickExtended battery: 2.1 lbs. It is 7.9 inches long by 3.6 inches wide by 1.9 inch thick
